Improvement in machines for dressing and drying woolen cloths



UNITED STATES v PATENT OFFICE.

IMPROVEMENT IN MACHINES FOR DRESSING AND DRYIING WOOLEN CLOTHS.

Specification forming part of Letters Patent No. 35,823, dated July 8, 1862.

T0 aZZ whom it may concern:

Be it known that I, DAVID HENDERSON, of Merrimac, in the countyof Hillsborough and `State of New Hampshire, have invented a new j and Improved Machine for Drying and Dressing Woolen Cloths; and l do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in Which- Figure l is aside sectional view of my invention taken in the line x, Fig. 2f Fig. 2 is a plan or top view of the same.

Similarletters of reference indicate corresponding parts in the two figures.

The object of this invention is to obtain a machine by which Woolencloths-such as iannels, broadcloths, &c.may -be subjected simultaneously'to the process of tentering, drying, napping, or brushing and pressing.`

To this end the invention consists in the employment or use of two or more steam-cylinders, with necessary carrying or guiding rollers arranged with a hot-air chamber heated by steam-pipes, a rotary blower, rotary tentering devices,' and brush or napping cylinders,- as hereinafter fully shown and described.

To enable those skilled in the art to fullyundex-stand and construct my invention, I will proceed to describe it.

A represents a box or chest on which the working parts of the'machine are placed and iitted in a suitable framing, B. The box or chest A is a hot-air chamber, and it is heated by steam-pipes C, which are arranged Within it either in the form of coils or in any suitable way to obtain a sucient length of pipe or heatradiating surface within the box or chest. The pipe C may receive the steam from the boiler used for Warming the building in which the machine is placed.

In the framing B there are placed two cylinders, D D, which may be stationary or allowed to rotate. Y'lhese cylinders'are of metal,

are hollow, and heated by steam from the pipe C in the box or chest A, the end of which communicates with a hollow journal at one end of the lower cylinder, D, and a hollow journal at the opposite end of said cylinder communicating by means of a pipe with a hollow journal at one end of the upper cylinder, D; but with stationary iron cylinders no hollow journals.

areV required, the steam being let in and out Where most convenient. F represents carrying or guiding rollers,which are placed in the framing B, and around which', as well as the steam-cylinders D D, the cloth (shownin red,

Fig. l) to be operated upon passes.

G represents a blower-case, which is of cylindrical form, placed on the box orehest A, and communicating with it by spouts or tubes a. H is the'blower, formed of Wings b, attached radially to a proper shaft, c, the bearings of which are' on the framing B.

I I are two cylinders, placed in the framing B, and provided at their peripheries either With brushes or any suitable substance to raise a nap, if napping be required.

J is a bar, which is secured permanentlyon the framing B, j ust back ofthe outermost brushing or napping cylinder I. This bar J has oblong slots d made in it-one at each endthrough which boltseel pass and secure inclined plates KK to the bar J. The plates KKserve as supports for wheels L L, the axes of which are secured to the plates, and the periphery of each wheel L has a series of curved or hooked teeth, j', attached to it, which are similar to card-teeth. The Wheels L L may be adjusted a little angularly or -obliquely with the edges or selvages of the cloth, and they are adjusted directly over the selvages and rotated by the movement of the cloth.

M is a roller, placed in the framing B, just back of the wheels L L, and around which the cloth is wound, and N is a pressure-roller, the

journals g g of which bear againstinclinedsupports h h on the framing B, said journals having suitable weights, O, attached to them.

The blower-shaft c is driven from the power or driving shaft P of the machine bya belt, z', and from the opposite end of shaft P one of the brushing or napping cylinders I is driven bya belt, j, motion being communicated to the other cylinder, I, from the first-mentioned one by a belt, k, at the opposite side of the machine. Motion is communicated to the roller M by gearing and belting l, arrangedin any proper way.

, The cloth to be operated upon passes around the steam-cylinders D D and guiding-rollers F,and directly over the top of the blower-case G, the upper part of which is open, and between the two brush or napping cylinders I I, underneath the Wheels L L and around the roller M. The cloth is heated and partially dried inpassing around the cylinders D D, and is further dried in being subjected toablast of hot air from the blower H, the hot air being drawnv up by the rotation of the blower from the box or chest A through thespouts or tubes a and projected against the cloth, as indicated by the arrows in Fig. l. The olokth is brushed or has a nap raised upon it on one or both sides in passing between the Cylinders I 1', while the wheels L -Lstreteh the cloth laterally,in consequence of having'a slightly-oblique position with it, the teeth f catching into the cloth and performing the function of tenters, the wheels beingv rotated by the movement of the cloth. The cloth therefore is Wound on the roller M in a properly stretched or distended state, and is subjected to pressure thereon by the loaded roller N.

Thus it will be seen that theeloth is subjected to the different processes of drying, brushing, or napping, lateral tentering, and pressing vall at the saine time or at one operation, and by a machine which monopolizesbutlittlespace, and which may be put up or manufactured atavery moderate oost. The pipe which conveyssteam to heat the cylinders D D also heats the air in the box or chest, from which hot airis foreed or made to impinge against the eloth,said pipe being therefore made to perform a double funetion. The maehineis applicable for any width of cloth, and performs the work rapidly and iu a perfect manner.

The cloth may have a greater or less speed M,and pressure roller N ,all arranged asand for the purpose herein specified.

DAVID HENDERSON.

XVitIiesses:

FULLARTON LEITCH, JAMEs MARTIN. 

